tag:blogger.com,1999:blog-8108095682502765612011-11-15T15:48:19.624-08:00Useful information all about pump like centrifugal pump, deep well pump, sump pump, jet pump, NPSH ( net positive suction head ), and pump design.bustanul arifinhttp://www.blogger.com/profile/14173100092239391803noreply@blogger.comBlogger61100tag:blogger.com,1999:blog-810809568250276561.post-56909094937589459832008-08-12T23:52:00.000-07:002009-04-20T14:50:00.039-07:00

Pumping of liquids is almost universal in chemical and petrochemical processes. The many different materials being processed require close attention to selection of materials of construction of the various pump parts, shaft sealing, and the hydraulics of the individual problems. A wide variety of pumps types have been developed to satisfy the many special conditions found in chemical plant

bustanul arifinhttp://www.blogger.com/profile/14173100092239391803noreply@blogger.com6tag:blogger.com,1999:blog-810809568250276561.post-222315047419376692008-08-12T23:49:00.001-07:002009-04-20T14:53:28.498-07:00

This is an important part of the pump system and should be thought of as a very specialized piping design. Considerable attention must be directed to the pump suction piping to ensure satisfactory pump operation.A pump is designed to handle liquid, not vapor, except possibly some vapor entrained or absorbed in the liquid. The liquid or its gases must not vaporize in the eye/entrance of the

bustanul arifinhttp://www.blogger.com/profile/14173100092239391803noreply@blogger.com1tag:blogger.com,1999:blog-810809568250276561.post-57802344572100182542008-08-12T23:37:00.000-07:002008-08-12T23:43:27.094-07:00

Brake Horse PowerThe power required to drive the pump is that required to overcome all the losses and supply the energy added to the fluid. These losses include the friction of flow trough the impeller and turbulent losses, the disk friction or energy required just to rotate the impeller in the fluid, the leakage of fluid from the periphery back to the eye of the impeller, and the mechanical

bustanul arifinhttp://www.blogger.com/profile/14173100092239391803noreply@blogger.com0tag:blogger.com,1999:blog-810809568250276561.post-19513831639004052002008-08-12T23:27:00.000-07:002009-04-20T14:58:54.314-07:00

Basically, the centrifugal machine is built around an impeller, which is in series of radial vanes of various shapes and curvatures, spinning in a circular casing. Fluid enters at the “eye” or axis of rotation and discharges more or less radially into a peripheral chamber at a higher pressure corresponding to the sum of the centrifugal force of rotation and the kinetic energy given to the fluid

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The general term, jet pump, includes all machines whose operation is based on the transfer of energy by impact from a fluid jetting at high velocity into a slowly moving or stagnant fluid, giving the mixture of fluids a moderately high velocity which is then reduced carefully so as to give a final pressure greater then the initial pressure of the low-velocity fluid. An injector is a jet pump

bustanul arifinhttp://www.blogger.com/profile/14173100092239391803noreply@blogger.com0tag:blogger.com,1999:blog-810809568250276561.post-20861924153784314762008-08-12T07:14:00.000-07:002009-04-20T15:24:54.128-07:00

Jet design is normally handled by the vendor. However, the process engineer must specify the system into which the jets are incorporated. He must also supply the vendor with operating conditions which include :1. Flows of all components to be purged from thesystem (often air plus water vapor).2. Temperature and pressure entering the jets and pressureleaving if not atmospheric.3. Temperature and

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